MANUFACTURED BY: |  | FRONTIER CHAIN SAWS |
 | | TRAIL, BRITISH COLUMBIA, CANADA |
SERIES OR ASSEMBLY NUMBER: | | 123 series |
SERIAL NUMBER PREFIX: | | |
YEAR INTRODUCED: | | 1979 |
YEAR DISCONTINUED: | | |
ENGINE DISPLACEMENT: | | 2.1 cu. in. (34.4cc) |
NUMBER OF CYLINDERS: | | 1 |
CYLINDER BORE: | | 1.4375 in. (36.5 mm) |
PISTON STROKE: | | 1.281 in. (32.5 mm) |
PISTON RING THICKNESS: | | |
CYLINDER TYPE: | | Aluminum with chrome plated bore |
INTAKE METHOD: | | Piston ported |
MANUFACTURER ADVERTISED H.P.: | | Not advertised |
WEIGHT: | | 8 lbs. 2 oz. (3.7 kg) powerhead only |
OPERATOR CONFIGURATION: | | One Man operation |
HANDLEBAR SYSTEM: | | Anti-vibration mounted |
CHAIN BRAKE: | | Yes, mechanical |
CLUTCH: | | Centrifugal |
DRIVE TYPE: | | Direct |
CONSTRUCTION: | | Die cast magnesium |
MAGNETO TYPE: | | Phelon |
CARBURETOR: | | Tillotson HU-18C
Walbro WA |
MAJOR REPAIR KIT: | | RK-14HU
K10-WAT |
MINOR REPAIR KIT: | | DG-2HU
D10-WAT |
AIR FILTER SYSTEM: | | Cellulose fiber element |
STARTER TYPE: | | Frontier automatic rewind |
OIL PUMP: | | Automatic with manual override |
MAXIMUM ENGINE RPM: | | 6,500 |
IDLE RPM: | | |
IGNITION TIMING: | | 25 degrees before TDC |
BREAKER POINT SETTING: | | none |
FLYWHEEL/COIL AIR GAP: | | 0.016 in. (0.41 mm) |
SPARK PLUG TYPE: | | Champion CJ6 |
SPARK PLUG GAP: | | 0.025 in. (0.63 mm) |
CRANKSHAFT MAIN BEARINGS: | | Caged needle roller |
FUEL TANK CAPACITY: | | 300 ml |
FUEL OIL RATIO: | | 20:1 |
RECOMMENDED FUEL OCTANE: | | Regular |
MIX OIL SPECIFICATION: | | Chain saw two-cycle mix oil |
CHAIN PITCH: | | 3/8 in low profile |
CHAIN TYPE: | | Oregon 91 |
BAR MOUNT PATTERN: | | |
SHORTEST GUIDE BAR SUPPLIED: | | 12 in. (30 cm) |
LONGEST GUIDE BAR SUPPLIED: | | 16 in. (40 cm) |
COLOUR SCHEME: | | Orange enamel |
PAINT CODES: | | |
ILLUSTRATED PARTS LIST: | | |
SERVICE MANUAL: | | |